A cell viewed under a high powered microscope appears to be in the fourth phase of the cell cycle. what does this indicate about the cell?

What does it mean to say that enzymes are specific?

How often does oxygen cycle through the atmosphere

Which characteristics allow the fetus to thrive, despite a lower than average blood po2?

Predatory and parasitic relationships involve two different species. What is similar about both a predatory (predation) and parasitic (parasite) relationship?

Which are characteristics of polyps? A. are usually sessile, have tentacles, mouths open downward B. swim freely, lack tentacles, mouths open upward C. swim freely, have tentacles, mouths open downward D.

Which of the following is a true statement about sexual vs. asexual reproduction? a. in sexual reproduction, individuals transmit 50%of their genes to each of their offspring. b.

A pollutant that forms when another pollutant interacts with the atmosphere or sunlight is known as a? A. primary pollutant B. secondary pollutant C. tertiary pollutant D. chuck-norrisy pollutant

What animal is best adapted to the life in a savanna biome? A. Bison B. Caribou C. Llama D. Zebra

Which of the following traits or characteristics were not found to be more similar in identical twins when compared to fraternal twins in the minnesota twin study?

A compound that carries lipids through the bloodstream to deliver them to cells.